Registration mechanism for automatic musical instruments.



w. E. 'HASKELLI REGISTRATION MECHANISM FOR AUTOMATIC MUSICALINSTRUMENTS.

APPLICATION FILEDAPR. I5. I9I6.

Patented Dec. 18, 1917.

3 SHEETS-SHEET I- un Incas 6 ilk-MM;

W. E. HASKELL.

REGISTRATION MECHANISM FOR AUTOMATIC MUSICAL INSTRUMENTS.

APPLICATION FILED APR. I5, I9I6- Patented Dec. 18, 1917.

3 SHEETS$HEET 2.

W. E. HASKELL. REGISTRATION MECHANISM FOR AUTOMATIC MUSICAL INSTRUMENTS.

APPLICATION FILED APR. 15. I9I6.

Patented Dec. 18, 1917.

3 SHEETS-SHEET 3.

UNI ED STATES PATENT OFFICE.

WILLIAM E. HASKELL, OF BRATTLEBORO, VERMONT, ASSIGNOR TO ESTEY ORGANCOMPANY, OF BRATTLEBORO, VERMONT, A CORPORATION OF VERMONT.

REGISTRATION MECHANISM FOR AUTOMATIC MUSIGAL INSTRUMENTS.

Specification of Letters Patent.

Application filed April 15, 1916. SeriaI No. 91,392.

To all whom it may concern:

Be it known that I, WVILLIAM E. I-IAsKELL, of Brattleboro, in the countyof lVyndham, State of Vermont, have invented a new RegistrationMechanism for Automatic Musical Instruments, of which the following is aspecification.

The object of the present invention is to maintain in properregistration a traveling perforated note sheet and a cooperating trackerhaving channels with which the perforations in the note sheet coincide,such a tracker being a well known characteristic of musical instrumentswherein sounding devices are controlled by perforations in the notesheet.

Registration mechanisms for maintaining a tracker and perforated notesheet in proper relation have long been well known. The most widely usedregistration mechanisms of this character utilize a pneumatic motor theaction of which is determined by the position of the note sheetrelatively to the tracker, the pneumatic motor bein operativelyconnected either to the trac (er or to the note sheet supports so as tomove one relatively to the other in order to maintain registration.

In accordance with the present invention the note sheet itself isutilized to perform the mechanical work involved in maintainingregistration. No extraneous motor is employed.

An embodiment of the present invention is illustrated in theaccompanying drawings, in which- Figure 1, is a front view, partly insection of the tracker and note sheet supporting and feeding devices, aportion being broken away to facilitate illustration on a large scale.Fig. 2, is a cross-section in the plane indicated by the line 22 in Fig.1, a part being broken away to facilitate illustration on a large scale.Fig. 3, is a vertical section in the plane indicated by the line 33 inFig. 1. Fig. 4, is an end view at the driving side. Figs. 5, 6, 7 and 8,are detail views.

The tracker A, as illustrated in Fig. l, is one equipped with two rowsof openings at, being such a tracker as is employed in organs having twomanuals. Such trackers are commonly made with 116 holes, 58 in each row.The illustrated mechanism is capable of use with note sheets adapted tocooperate with a tracker having 116 openings, the width of such notesheets being indicated in the drawings by the line marked Old paper inFig. 1. The illustrated tracker has additional openings at the two endswhich are utilized for the purpose of controlling stop combinations, orother adjuncts of an organ such as swells. The number of such auxiliaryopenings, may be varied. The drawings illustrate five auxiliaryopenings, three at one side and two at the other. l/Vith a tracker barhaving such auxiliary openings a wider paper is employed. The width ofsuch wider paper is indicated in Fig. 1, by the line marked New paper. Acustomary width of the old paper is ten inches and one-eighth of aninch. A proper width for the new paper is ten inches andseventeen-twenty-fourths of an inch. The illustrated mechanism isadapted to utilize either of these widths of paper. The devices employedwhich adapt the mechanism for the different widths of paper will beexplained after the registration features have been set forth. 1

B, is the music roll upon which the perforated note sheet (I, isinitially wound. D is the take-up roll. Both the music roll and thetake-up roll are mounted in a transversely swinging frame. This frameswings transversely to the length and travel of the music sheet. Thistransversely swinging frame comprises two vertically extending rods E,each having forwardly extending brackets F, F, one at each end; and twovertically extending side bars G, G. Each rod E, is mounted to turn on avertical axis. As shown each rod E, is journaled at both ends and issupported at its lower end by a step bearing, a pointed cone step beingillustrated so as to involve little friction. Each bar G, isparallel'with the corresponding rod E, and it is j ournaled at both endsbetween the outer ends of the brackets F, F, of the corresponding rod E.Pointed cone step bearings are employed at both. ends of each bar G, soas to minimize friction. The two bars G, are adjustably connectedtogether near their upper ends by means of a tie-rod H. By reason of theindependent pivots of the bars G, G, they remain parallel with eachother irrespective of the swing of the entire frame from side to side onthe vertical axes of the two rods E, E.

The music roll B, and the take-up roll D, are mounted to turn in and becarried by the two bars G, of the transversely swinging frame. Themanner in which these two rolls are thus mounted and journaled will behereinafter explained. It suffices to know that they are so mounted andjournaled in order to understand the way in which the registration ismaintained between the note sheet and the tracker.

As shown in F 3, the perforated note sheet in passing from the musicroll to the take-up roll extends over the tracker. The face of thetracker is forward of the two rolls so that the note sheet makes a bendin passing over the tracker thereby facilitating close contact betweenthe note sheet and the surface of the tracker. The note sheet on its waybetween the two rolls B and D, passes between two guides I, l, near thetracker. The two guides are carried by two rods J, K, respectively, andeach rod is mounted to-slide lengthwise and transversely to the notesheet in stationary bearings 7), 7). The rod J, is adjustably connectedto the forward end of a lever L, pivoted at c, to a fixed part of themechanism. .The rod K, is adjustably connected to the front end of alever M, which is pivoted at (Z, to a fixed part of the mechanism. Thetwo levers L and M, are connected together by a spring N, and by a link0. The link is pivoted to the lever L, forward of its pivot c; and it ispivoted to the lever M, back of its pivot (Z. The spring N, acts to pullthe outer ends of the two levers L and M, toward each other, and thus tomove the two guides 1, toward each other and to cause them toyieldin'gly bear upon the edges of a note sheetpassing between them. Thelink 0, compels the movements of the two levers in unison under allcircumstances. It is important that these disks should be out of thewaywhen a music sheet is placed in the musical instrument or i removedtherefrom. To this end, a headed red P, loosely connects the lever L,to'the movable board of a. pneumatic Q, as shown in Fig. 2. The movableboard of the pneumatic is acted upon 'by a spring R, which is morepowerful than the spring N. lVhen the musical instrument is not beingused, the spring R, moves the movable board'of the pneumatic to theright (as shown in Fig. 2) thereby separating the forward ends of thelevers L and M, which move in consonance due to the link 0, henceputting the spring N, under greater tension and separating the guides I,to the maximum extent. A. note sheet can then be readily positionedbetween the two guides I, and in contact with neither. When the musicsheet is in place, compressed air is admitted to the interior of thepneumatic Q, thus swinging the movable board to the left, putting thespring R, under increased tension, and moving the loosely con nectedhead 6, of the rod P, out of the way of the lever L. Thereupon the lightspring N, brings the outer ends of the two levers L and M, toward eachother, thereby causing the two guides I, to yieldingly press upon theopposite edges of the note sheet. This pressure is sufliciently light sothat there is no injury to the edges of the paper.

The illust 'ated mechanism is shown as located within a boxS, into whichcompressed air is admitted after the front has been closed by thecustomary sliding glass panel, which is so well known that it is notillustrated in the drawings. The interior of the pneumatic ,Q,communicates with the interior of thebox S, through the pipeAccordingly, when compressed air is admitted intothe box for the purposeof feeding the tracker openings a, through the perforations g, inthenote sheet it passes into the interior of the pneumatic Q, therebyleaving the guides 1, under the exclusive control'of the p n Vhentheautomatic playing mechanism is at work, the note sheet runs between theguides I, which press'yicldingly on the oppo site edgesof the sheet.These guides pressing equally on opposite edges of the sheet maintainthe sheet centrally with respect to the tracker. That is to say, themiddle longitudinal line of the music sheet is maintained in registerwith the middle line of the tracker. The force exerted by the spring N,is greater than the friction of the bearings of the transverselyswinging music sheet supporting frame, and also sufficiently great toovercome the inertia of the swinging frame. Consequently, any deviationof the sheet from registration with the tracker bar is compensated forby the swinging of the note sheet supporting frame and b the automaticadjustment of the guides I. Assume, for example, that the sheet tends tomove toward the right (as shown in Figs. land 2 of the drawings), thistendency is resisted by the right hand guide I, and the result is toswing the note sheet supporting frame to the left thereby maintainingthe proper registration between the note sheet and the tracker. Anycontraction or expansion of the note sheet is taken care of by theyielding character of the guides I, which move to or from each other tocomply with the variations in the width of the note sheet.

The music roll 13, is removablymounted in the swinging frame. The bar G,at the left (Fig. 1) carries a yielding bearing 71., for thecorresponding end of the music roll. This yielding bearing is similar toyielding bearings which have heretofore been employed in musicalinstruments excepting that in the instant case it is carried by atransversely swinging frame. At the right hand end the music roll isdetachably secured to a driven shaft T, j ournaled in the right hand barG. The detachable coupling between the music roll and the driven shaftis of familiar construction. Accordingly, the music roll can be removedand a different one replaced in the same way as in well known priorautomatic musical instruments. The driven shaft T, comprises one section2', inside the right hand bar G, an outer section j, extendingthroughthe said bar, and a pintle k, secured to both. The music roll is drivenduring rewinding from a drive shaft U, Which is rotated and controlledin any of the well known ways. Owing to the lateral movement of the notesheet supporting frame a compensating connection is employed between thedrive shaft U, and the driven shaft T. The driven shaft T, has a crankarm 1, (Fig. 6) fastened to the outwardly projecting end of the pintle7s, and this crank arm has a radial open slot m. The neighboring end ofthe drive shaft U, has a crank arm n, which has an inwardly andlaterally projecting elongated crank pin 0, which enters the slot m. Thelength to which the crank pin extends on both sides of the slot m, issufiicient to compensate for the maximum possible lateral swing of thenote sheet supportingframe. The crank pin has a sliding fit within theslot m, which is sufficiently close so that the music roll is alwaysunder the ready control of the drive shaft during rewinding.

The take-up roll D, comprises a drum V, fast on a shaft 7. This shaft V,is journaled at opposite ends in the two bars G, of

the swinging frame. At the right hand end a reduced end of the shaft W,extends to the right beyondthe right hand bar G, and this projecting endis secured to a crank arm [9, (Fig. 5) having a radial open slot 9. Amotion transmitting gear 7, has a transversely extending crank pin 8,which enters the slot (1, and has a sliding and driving fit therein.This gear 1', is carried by a shaft 23,

Y journaled in a bearing carried by. a fixed part of the apparatus. Thegear 1,- is driven during the playing of the composition on the musicsheet from a drive shaft X, which has a pinionu, adapted to engage thegear 1".

- The drive shaft X,'is rotated in any ofthe now well known ways, and asis customary it is movable lengthwise so as to engage and d sengage itspinion u, from the gearr. The

sliding'connection between the gear 4", and

the take-up shaft W, permits and compensates for the lateral swing ofthe note sheet supporting frame.

Fig. 1, shows a swinging frame adjusted to receive amusic roll carryingthe wide paper. It is desirable that the swinging frame should beadjustable so as to permit the use of a narrower 116-no1'e sheet so asto utilize the extensive assortment of such note sheets which is now inexistence.

This adjustment is effected by the connections between the tie-rod H,and the side bars G, of the swinging frame and by reason of thetelescopic construction, employed in connection with the take-up roll.

The tie-rod H, is permanently secured at its right hand end to the righthand bar G, by means of a. sleeve 1:, which is socketed into the righthand bar G, and two collars w, which are pinned to the tie-rod H, at theopposite ends of the sleeve 12. At its left hand end the tie-rod H, isscrew-threaded andscrews into a screw-threaded sleeve Y, whichissocketed into and secured to the left hand bar G. The lefthand end ofthe tie-rod extends beyond the sleeve Y, and outside of the left handbar G, and to this end is pinned a Collar m. At its middle the tierodhas a milled section y, by means of which the tie-rod can be readilyturned by hand. Between this middle turning section and the inner end ofthe sleeve Y, the tie rod has pinned to it a stop .2. Fig. 1, shows thedistance between the stop 2, and the inner end of the sleeve Y, as justequal to the difference in width between a 116-note sheet and the widernote sheet employed. In order toadjust the bars G, for the narrower notesheet (which, of course, is done when there is no music roll in theapparatus) the tiered H, is turned until the sleeve Y, abuts against thestop The frame bars G, are then atthe proper distance apart to receivethe 1l6-slot note sheet. The outer collar 00, on, thetie-rod H,constitutes an outer stop to determine the proper adjustment of the sidebars G, to receive the wide paper.

As the take-up roll is permanently mounted in the frame bars G;provision is made for the adjustment of the take-up roll to corre-,

spend with the adjustment of the frame bars G. The eflective size of thetake-up roll is determined by the two flanges Z, Z, at the opposite endsof the take-up roll. It is be tween these flanges that the note sheetextends and these flanges are spaced apart to properly receive and guidethe note sheet as it is woundjupon the take-up roll. Each flange has ahub 10, which embraces the shaft 1V with a sliding fit. The drum V, isshorter than the distancefbetween the two flanges Z, when the apparatusis adjusted for the wide paper. the spaces between the two ends of thedrum and the-two flanges being equal. At each end the drum is recessedas shown at 11, in full lines at the right in Fig. 1, and in dottedlines at the left. A coiled spring 12, surrounds the shaft W, betweeneach end of the drum V, and the neighboring flange Z, each springextending into the corresponding recess 11, as shown in full lines atthe right in Fig. 1, and in dotted lines at the left. The shaft hasshoulders 13, at opposite ends constituted by the difference in diameterbetween the central portion of the shaft and the smaller outer endswhich extend through the side bars G, and are jonrnaled therein. hen thewide note sheet is employed there is a space be ween each of theseshoulders and the inner face of the neighboring side bar G. The sum ofthese spaces is at least equal to the difference between the widths ofthe two varieties of note sheets. At the right hand end of the shaft W,the external crank p, constitutes a stop. At the left, the shaft extendsoutwardly beyond the left hand side of the bar G, and to this projectingend a stop 14:, is secured. When the wide sheet is used the side bars G,are against the stop 14C, and the crank 29, and the hubs of the flangesZ, are held pressed against the inner faces of the side bars G, by thespi'ings'12.

When the tie-rod H, is turned to bring the side bars G, closer together,the springs 12, yield and permit the flanges Z, to be brought.co-rrespomlingly close together so that they guide the narrower sheetwith the same eflicacy as the wider sheet. Preferably, the side bars G,just set against the shoulders 13, u hen the frame is adjusted toreceive the narrower note sheet.

It is important that the sliding pinion a, should be accuratelypositioned with respect t the. gear 7*. The bearings for the shafts ofthis pinion and gear are supported by the wooden side wall 15, of thebox which incloses the tracker and the music sheet sup portingmechanism. A wooden support for the bearings of shafts t, and X, wouldbe unreliable to maintain the said gear and pinion in proper relation.Accordingly, a metal plate 16, is secured to the outer face of the sidewall 15, and the respective bearings for the two shafts are positionedby this plate. The bearing sleeve 17, for the shaft 6', is socketed intothis plate 16. The shaft X, turns in a bearing 18, (Fig. 8) which iscarried by the plate 16. Hence the pinion and the gear are alwaysmaintained accurately positioned irrespective of any change in the sidewall 15. It will be noted that the shaft X, extends through a. largerhole 19, in the side wall 15.

To insure accurate fit between the pinion and gear, the bearing 18, isadjustable in the plate 16. The bearing 18, has an eccentric bore inwhich the shaft X, fits. The bearing 18, screws into the plate 16.Hence,

by turning the bearing (which has a hexagonal head for this purpose) theshaft X, can be adjusted with respect to the shaft 25, thus insuring anaccurate fit between the gear 1, and the pinion u. The bearing 18, whenadjusted is maintained in place by a lock nut 20.

1. An automatic musical instrument having, in combination, a tracker; atransversely swinging frame having side bars pivoted therein; a tie-rodconnecting said side bars; a music roll and a take-up roll ournaled inand between said side bars; transversely movable guides near saidtracker between which the note sheet travels as it passes from the musicroll to the take-up roll and over the tracker; levers acting on saidguides; a spring connecting said levers and causing said guides to pressyieldingly against the edges of the note sheet; a link connecting saidlevers; apneumatic; a spring acting on said pneumatic to close it; saidspring being more powerful than the aforesaid spring which connects saidlevers; a loose connection between said pneumatic and said levers; and acompressed air connection to said pneumatic whereby the pneumatic isexpanded and the guides are freed to press on the edges of the notesheet.

2. An automatic musical instrument hav ing, in combination, a tracker;atransversely swinging frame having side bars pivoted therein; a musicroll and a take-up roll journaled in and between said side bars;transversely movable guides near said tracker between which the notesheet travels as it passes from the music roll to the take-up roll andover the tracker; levers acting on said guides; a spring connecting saidlevers and causing said guides to press yieldingly against the edges ofthe note sheet; a link connecting said levers; a pneumatic; a springacting on said pneumatic to close it; said spring being more powerfulthan the aforesaid spring which connects said levers; a connectionbetween said pneumatic and said levers; and a compressed air connectionto said pneumatic whereby the pneumatic is expanded and the guides arefreed to press on the edges of the note sheet.

3. An automatic musical instrument having, in combination, a tracker; atransversely swinging frame having side bars pivoted therein; a musicroll and a take-up roll journaled in and between said side bars;transversely movable guides near said tracker between which the notesheet travels as it passes from the music roll to the takeup roll andover the tracker; a spring causing said guides to press yieldinglyagainst the edges of the note sheet; a pneumatic; a spring acting onsaid pneumatic to close it, said spring being more powerful than theaforesaid guide controlling spring; a connection between said pneumaticand said levers; and a compressed air connection to said pneumaticwhereby the pneumatic is eX- panded and the guides are freed to press onthe edges of the note sheet.

4. An automatic musical instrument having, in combination, a. tracker; Ia transversely swinging frame; a music roll and a take up roll ournaledin said frame; transversely movable guides between which the note sheettravels as it passes from the music roll to the take-up roll and overthe tracker; levers acting on said guides; a spring connecting saidlevers and causing said guides to press yieldingly against the edges ofthe note sheet; a link connecting said levers; a pneumatic; a springacting on said pneumatic to close it; said spring being more powerfulthan the aforesaid spring which connects said levers; aconnectionbetween said pneumatic and said levers; and an air connectionto said pneumatic whereby the pneumatic is moved in opposition to itsspring and the guides are freed to press on the edges of the note sheet.

5. An automatic musical instrument hav ing, in combination, a tracker; atransversely swinging frame having side bars pivoted therein; a tie-rodconnecting said side bars; a music roll and a take-up roll journaled inand between said side bars; transversely movable yielding guides betweenwhich the. note sheet travels as it passes from the music roll to thetake-up roll and over the tracker, said guides bearing yieldingly onopposite edges of the note sheet; and pneumatic means to render both ofsaid guides effective and ineffective by moving said guides to and fromeach other.

6. An automatic musical instrument having, in combination, a tracker;atransversely swinging frame having side bars pivoted therein; a tie-rodconnecting said side bars; a music roll and a take-up roll journaled inand between said side bars; and transversely movable yielding guidesadjacent said tracker between which the note sheet travels as it passesfrom the music roll to the takeup roll and over the tracker, said guidesbearing yieldingly on opposite edges of the note sheet.

7. An automatic musical instrument having, in combination, a tracker; atransversely swinging frame having side bars pivoted therein; a musicroll and a take-up roll journaled in and between said side bars; andtransversely movable. yielding guides between which the note sheettravels as it passes from the music roll to the take-up roll and overthe tracker, said guides bearing yieldingly on opposite edges of thenote sheet. v

8. An automatic musical instrument hav ing, in combination, a tracker; atransversely swinging frame having side bars pivoted therein; a musicroll and a take-up roll ournaled in and between said side bars; andguides at opposite edges of the note sheet between which the note sheettravels as it passes from the music roll to the take-up roll and overthe tracker.

9. An automatic musical instrument having, in combination, a tracker; alaterally movable note sheet supporting frame carrying the music andtake-up rolls; spring pressed guides near the tracker bearing onopposite edges of the note sheet when the sheet is traveling over thetracker from one of said rolls to the other, said guides bearingyieldingly on opposite edges of the note sheet and pneumaticallycontrolled means to render both of said guides effective and ineffectiveby moving said guides to and from each other.

10. An automatic musical instrument having, in combination, a tracker; alaterally movable note sheet supporting frame carrying the music andtake-up rolls; and spring pressed guides near the tracker bearing onopposite edges of the note sheet when the sheet is traveling over thetracker from one of said rolls to the other.

11. An automatic musical instrument having, in combination, a tracker; alaterally movable note sheet supporting frame carrying the music andtake-up rolls; and yielding guides near the tracker bearing on oppositeedges of the note sheet when the sheet is traveling over the trackerfrom one of said rolls to the other.

12. An automatic musical instrument having, in combination, a tracker, alaterally movable note sheet supporting frame carrying the music andtake-up rolls; and guides near the tracker at opposite edges of the notesheet when the sheet is traveling over the tracker from one of saidrolls to the other, said guides being movable to and from each other;and means to render both of said guides effective. and ineffective bymoving said guides to and from each other;

13. An automaticmusical instrument having, in combination, a tracker; alaterally movable note sheet supporting frame carrying the musicandtake-up rolls; and guides near the tracker at opposite edges of the notesheet when the sheet is traveling over the tracker from one of saidrolls to the other, said guides being movable to and from each other.

14. An automatic musical instrument hav ing, in combination, a tracker;a swinging adjustable note sheet supporting frame having side barspivoted therein; bearings in said side bars for a detachable music roll;a take-up roll having a shaft slidingly jour naled in said side bars,and, a drum fast on said shaft; a guide flange having a hub loose onsaid haft betweeneach end of said drum and the neighboring side bar; a

spring between each end of said drum and the corresponding flange whichmaintains the hub of said flange against the neighboring side bar; ascrew threaded sleeve fast to one of the side bars; a tie-rod screwingat one end into said sleeve and extending beyond said sleeve and itsside bar, and rotatively connected with the other side bar butrestrained from other movement relatively thereto; a milled turningsection on said tie-rod; an outer stop on the screw threaded end of thetie-rod; and an inner stop on the tie-rod adapted to abut against theinner end of said screw threaded sleeve.

15. An automatic musical instrument having, in combination, a tracker; aswinging adjustable note sheet supporting frame having side bars pivotedtherein; a screw threaded sleeve fast to one of the side bars; a tie-rodscrewing at one end into said sleeve and extending beyond said sleeveand its side bar, and rotatively connected with the other side bar butrestrained from other movement relatively thereto; a milled turningsection on said tie-rod; an outer stop on the screw threaded end of thetie-roe; and an inner stop on the tie-rod adapted to abut against theinner end of said screw threaded sleeve.

16. An automatic musical instrument having, in combination a tracker; aswinging adjustable note sheet supporting frame having side bars; ascrew threaded sleeve fast to one of the side bars; a tie-rod screwingat one end into said sleeve and extending beyond said sleeve and itsside bar, and rotatively connected with the other side bar butrestrained from other movement relatively thereto; an outer stop on thescrew threaded end of the tie-rod; and an inner stop on the tie-rodadapted to abut against the inner end of said screw threaded sleeve.

17 An automatic musical instrument having, in combination, a tracker; anadjustable note sheet supporting frame having side bars; a screwthreaded sleeve on one of the side bars; a tie-rod screwing at one endinto said sleeve, and rotatively connected with the other side bar butrestrained from other movement relatively thereto; and stops limitingthe rotation of the tie-rod in both directions.

18. An automatic musical instrument hav ing, in combination, a tracker;an adjustable note sheet supporting frame; and means for adjusting saidframe to accommodate note sheets of different widths.

19. An automatic musical instrument having, in combination a tracker; anadjustable note sheet supporting frame having side bars; bearings insaid side bars for a detachable music-roll; a take-up roll having ashaft slidingly journaled in said side bars, and a drum fast on saidshaft; a guide flange having a hub loose on' said shaft between each endof said drums and the ncigl'iboring side bar; a spring between each endof said drum and the corre sponding flange which maintains the hub ofsaid flange against the neighboring side bar; and means for adjustingthe frame to ac commodate note sheets of different widths.

20. An automatic musical instrument having, in combination, a tracker;an adjustable note sheet supporting frame having side bars pivotedtherein; bearings in said side bars for the detachable music roll; atakeup rollhaving a shaft slidingly journaled in said side bars, andtelescoping guide flanges; springs tending to separate the guideflanges; and means to adjust the frame to accommodate note sheets ofdifferent widths.

21. An automatic musical instrument having, in combination, a tracker;an adjustable note sheet supporting frame having side bars; hearings insaid side bars for a detachable music roll; a take-up roll permanentlyjournaled in said side bars; and means to adjust the frame toaccommodate notesheets of different widths. I

22. An automatic musical instrument having, in combination, a tracker; alaterally swinging note sheet supporting frame; a driven shaft for themusic roll journaled in said frame and having a slotted crank arm; adrive shaft for the music roll having a crank pin extending through saidslot with a sliding and driving fit; a driven shaft for the take-up rolljournaled in said frame and having a slotted crank; and a drive shaftfor the music roll having a crank pin extending through said slot with asliding and driving fit.

23. A1'1 automatic musical instrument hav ing, in combination, atracker; a movable note sheet supporting frame; a driven shaft for themusic roll journaled in said frame and having a slotted crank arm; adrive shaft for the music roll having a crank pin extending through saidslot with a sliding and driving fit; a driven shaft for the takeup roll.journaled in said frame and having a slotted crank; and a drive shaftfor the music roll having a crank pin extending through said slot with asliding and driving fit.

24:. An automatic musical instrument having, in combination, tracker; amovable note sheet supporting frame; a driven shaft for the music rolljournaled in said frame; a drive shaft for the music roll; a drivenshaft for the take-up roll journaled in said frame; a drive shaft forthe music roll; and compensating connections between each of said driveshafts and the corresponding driven shaft.

25. An automatic musical instrument having, in combination, a box'having wooden walls containing the tracker, the music roll and thetake-up roll; a gear operatively' connected With the take-up roll; ashaft for said gear; a metal plate secured to a Wooden Wall of said box;a bearing for said gear shaft connected with said plate; an adjustablebearing screwing in said plate and having an eccentric bore; a shaftsliding and rotating in said adjustable bearing; and a pinion on saidshaft adapted to engage said gear.

26. An automatic musical instrument having, in combination, a box withWooden Walls containing the tracker, the music roll and the take-uproll; a gear operatively connected with the take-up roll; a shaft forsaid gear; a metal plate secured to a Wooden Wall of said box, a bearingfor said gear shaft connected with said plate; a second bearing in saidplate; a shaft sliding and rotating in said second bearing; and a pinionon said shaft adapted to engage said gear.

27. An automatic musical instrument having, in combination, a tracker, amusic roll and a take-up roll; a gear operatively connected With thetake-up roll; a shaft for said gear; an adjustable screw threadedbearing having an eccentric bore; a shaft sliding and rotating in saidadjustable bearing; and a pinion on said shaft adapted to engage saidgear.

In Witness whereof, I have hereunto signed my name.

WILLIAM E. HASKELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

